A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An ancient iron pillar in Delhi that seems to be rustproof.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Single runway interrupted by a busy road that cuts across its middle.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

2300-year-old Roman road connecting the empire.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A haunting collection of the vanished and disappearing natural world.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

The loneliest plant in the world resides at the Durban Botanic Gardens...mostly.

The world's largest impact crater is mainly eroded but still remembers the planet's violent history.

Caves that can't seem to quit producing the remains of prehistoric humans.

Home to some of the oldest hominid fossils ever found.